49:1 Unun
This is a unun ( unbalanced to unbalanced )
transmission line transformer designed to match 2450Ω to 50Ω .
It has a constant impedance transformation
ratio of 49:1 from 3.5MHz to 50MHz. The efficiency is 98 percent.
Technical
specification :
Type :
49:1
Unun
Frequency :
3.5MHz – 50MHz
Turns ratio: 1:7
Impedance ratio: 1:49
Input Impedance:
50Ω
Output
Impedance:
2450Ω
Power Handling(CW/SSB) :
250W /500W and 700W of peak power
Core Type :
FT240-43 by Fair-rite® Co.
Wire type: Enamel
copper wire 1.6 mm (AWG 14)
Insulation type :
PTFE
DataSheet
https://drive.google.com/file/d/1r9Qpbxz4fwuYs779XAs-TcX6fF-9VoyL/view?usp=sharing
Package Contents
You get what you see.
FT240-43 core by Fair-rite® winding
with Enamel copper wire (AWG
14)
Capacitor 100pF 40KV
Assembled and tested.
This transformer requires a feed line choke to
isolate the coax feed line from the antenna.
SHIPPING
We ship worldwide from French by Registered
Air mail with tracking number.
Your item will be shipped next business day
once payment received.
Delivery time depends on destination and
Customs, usually it takes about 10-25 business days.